coffee grinder

Abstract

This application provides a coffee grinder, including a control system. The grinder body comprises a grinding chamber, a first component, and a second component movably disposed on the first component and capable of moving along a first direction. A receiving space is formed between the first and second components. A motor is disposed on the first component and electrically connected to the control system. A fixed blade assembly is disposed in the grinding chamber and connected to the second component. A movable blade assembly is disposed in the grinding chamber and fixedly connected to the output shaft of the motor. A ranging component is disposed in the receiving space and electrically connected to the control system, including a Hall plate disposed perpendicular to the first direction on the first component and a permanent magnet disposed on the second component, the bipole of the permanent magnet being disposed opposite to each other in the first direction. The output shaft's axial direction is parallel to the first direction. The coffee grinder provided by this application has a large adjustable grinding range and is easy to assemble.

Description

Technical Field

[0001] This application belongs to the field of small household appliance technology, and more specifically, relates to a coffee grinder. Background Technology

[0002] To meet the needs of different bean particle sizes during grinding, some existing coffee grinders have adjustable grinding distances. In related technologies, the distance adjustment and monitoring in coffee grinders are achieved through Hall effect sensors and permanent magnets. However, in these technologies, one pole of the Hall effect sensor and one of the permanent magnet's poles are positioned directly opposite each other along the permanent magnet's axis. This results in a very small linear range for the change in magnetic flux of the permanent magnet monitored by the Hall effect sensor. Consequently, the positional accuracy requirements for the Hall effect sensor and permanent magnet during assembly are extremely high, making assembly difficult and easily affecting monitoring accuracy. This also limits the adjustable distance that the Hall effect sensor can monitor, thus restricting the grinding range of the coffee grinder. Utility Model Content

[0003] The purpose of this application is to provide a coffee grinder to solve the technical problems of the small effective ranging range and difficult assembly of existing coffee grinders.

[0004] To achieve the above objectives, the technical solution adopted in this application embodiment is to provide a coffee grinder, which includes:

[0005] The machine body includes a grinding chamber, a first component, and a second component movably disposed on the first component and at least partially movable along a first direction; a receiving space is formed between the first component and the second component.

[0006] A motor is mounted on the first component and electrically connected to the control system.

[0007] A fixed blade assembly is disposed in the grinding chamber and connected to the second assembly;

[0008] The moving blade assembly is disposed in the grinding chamber and fixedly connected to the output shaft of the motor;

[0009] A ranging component, disposed in the receiving space and electrically connected to the control system, includes a Hall plate disposed opposite to the first component in a direction perpendicular to the first direction and a permanent magnet disposed on the second component. The bipolar poles of the permanent magnet are disposed opposite to each other in the first direction. The receiving space allows the permanent magnet to move along the first direction.

[0010] The axis of the output shaft is parallel to the first direction.

[0011] Optionally, the second component includes a rotating base and a sliding base that are threadedly connected to each other. The sliding base is slidably disposed on the first component along a first direction and connected to the fixed cutter head assembly. The rotating base is rotatably disposed on the first component to drive the sliding base to slide relative to the first component. The receiving space is formed between the sliding base and the first component.

[0012] Optionally, a first driving device for driving the rotary table to rotate is provided on the first component, and the first driving device is electrically connected to the control system; the first driving device includes a second motor disposed on the first component, a driving gear connected to the output shaft of the second motor, and an internal gear ring sleeved on the rotary table, wherein the driving gear meshes with the internal gear ring.

[0013] Optionally, a leveling component is also provided for driving the second component to deflect relative to the output shaft, and at least three leveling components are arranged around the output shaft array.

[0014] Optionally, a third component capable of telescopic extension in a first direction is provided at the end of the rotary table away from the fixed cutter head assembly; the leveling component includes a leveling screw and a leveling sleeve, the leveling sleeve passes through the slide and one end is fixedly connected to the first component, the slide and the leveling sleeve are slidably disposed relative to each other in the axial direction, the leveling screw rotates and passes through the third component and is threadedly connected to the leveling sleeve, and the leveling screw abuts against the third component.

[0015] Optionally, the first component includes a bearing housing located between the motor and the second component and disposed around the output shaft, with a bearing rotatably disposed between the bearing housing and the output shaft; each of the leveling screws passes through the bearing housing, and the two ends of the leveling screw sleeve abut against the first component and the bearing housing, respectively.

[0016] Optionally, the receiving space is formed between the slide and the bearing housing; the Hall plate is connected to the peripheral sidewall of the bearing housing, and the permanent magnet is connected to the slide.

[0017] Optionally, a first spring is fitted on the side of the leveling screw sleeve near the fixed cutter head assembly and on the outer wall between the slide and the first assembly.

[0018] Optionally, the third component includes a second spring, a connecting seat, a thrust bearing, and an abutment seat arranged sequentially in the first direction; the two ends of the second spring abut against the bearing seat and the connecting seat respectively; the leveling screw passes through the abutment seat and the connecting seat; and the two end faces of the thrust bearing are respectively between the rotating seat and the abutment seat.

[0019] Optionally, the machine body is provided with a feeding channel and a discharging channel, both of which are connected to the grinding chamber. A feeding port is provided on the feeding channel. The feeding channel is arranged to pass through the second component along a first direction, and the output shaft passes through the feeding channel.

[0020] The coffee grinder provided in this application embodiment has at least the following beneficial effects:

[0021] The magnetic field direction monitored by the Hall plate of the permanent magnet is approximately parallel to the first direction. That is, the magnetic flux density of the permanent magnet changes linearly in the first direction so that it can be effectively monitored by the Hall plate. In this way, on the one hand, the range of linear changes in magnetic flux density that the Hall plate can detect can be as large as possible, so as to effectively increase the adjustment range of the coffee grinder. On the other hand, when assembling the Hall plate and the permanent magnet, it is only necessary to ensure that the bipolar poles of the permanent magnet are in the first direction and that the Hall plate is parallel to the first direction, without having to strictly require the positive relative position of the two in the same axis, thereby simplifying the assembly process. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a perspective cross-sectional view of a coffee grinder in some embodiments of this application;

[0024] Figure 2 and Figure 3 This is a partial cross-sectional view of a coffee grinder in some embodiments of this application;

[0025] Figure 4 and Figure 5 This is a partial exploded view of a coffee grinder in some embodiments of this application. Detailed Implementation

[0026] To make the technical problems, technical solutions and beneficial effects to be solved by this application clearer, the following describes this application in further detail with reference to the accompanying drawings and embodiments.

[0027] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0028] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or indirectly on that other component.

[0029] When a component is said to be "connected to" another component, it can be directly connected to the other component or indirectly connected to that other component.

[0030] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0032] In the description of this application, "multiple" means two or more, unless otherwise expressly and specifically defined.

[0033] Please refer to the following: Figures 1 to 5 The coffee grinder provided in the embodiments of this application will now be described.

[0034] It is understood that the coffee grinder provided in this application embodiment is used to grind beans (such as coffee beans), and the grinding gap can be adjusted according to the requirements of different powder particle sizes.

[0035] The coffee grinder of this embodiment includes a body 10, a main control board (not shown in the figure) mounted on the body 10, a motor 41, a moving blade assembly 52, a fixed blade assembly 51, and a ranging assembly 60. The main control board houses a control system. Furthermore, the body 10 may include a base and a cover mounted on the base, serving as a load-bearing component and a covering. An operating terminal electrically connected to the main control board may also be mounted on the body 10. This operating terminal may include a display screen and an operating panel or knobs to display and adjust grinding parameters such as ranging parameters and the motor 41 speed.

[0036] Specifically, refer to Figures 1 to 3 A grinding chamber a is formed inside the body 10. The aforementioned moving blade assembly 52 and fixed blade assembly 51 are disposed in the grinding chamber a. The grinding chamber a can be disposed on the top of the body 10 or on one side of the horizontal end of the body 10, and is not limited thereto.

[0037] refer to Figures 1 to 3The machine body 10 is also provided with a feeding channel c and a discharging channel d that are connected to the grinding chamber a. In some embodiments, the feeding channel c is arranged parallel to the first direction and has a feeding port thereon, while the discharging channel d is arranged to be connected to the bottom of the grinding chamber a. Furthermore, a feeding screw for conveying the beans is provided in the feeding channel c. By arranging the feeding channel c parallel to the first direction, the beans can enter the grinding chamber a in small, orderly amounts, which is beneficial for the thorough grinding of the beans in the grinding chamber a.

[0038] Preferred, Reference Figures 1 to 3 In the grinding chamber a, the grinding discs on the moving disc assembly 52 and the fixed disc assembly 51 are both arranged parallel to the vertical direction. The discharge channel d is located at the bottom of the grinding chamber. Thus, when grinding soybeans, the ground soybean powder, under the action of centrifugal force, is thrown tangentially towards the wall of the grinding chamber a and quickly falls into the discharge channel d after hitting the wall, shortening the length of the soybean powder discharge path and effectively reducing the amount of residual powder in the grinding chamber a.

[0039] refer to Figures 1 to 5 The machine body 10 is provided with a first component 20 and a second component 30. The first component 20 is fixedly disposed, and the second component 30 is movably disposed on the first component 20, and at least a portion of its structure is movable relative to the first component 20 along a first direction (e.g., sliding along the first direction and deflecting at a small angle relative to the first direction), wherein the first direction is perpendicular to the plane on which the respective grinding discs of the moving disc assembly 52 and / or disc assembly 51 are located. It should be understood that a receiving space b is formed between the first component 20 and the second component 30.

[0040] It is understood that the aforementioned motor 41 is mounted on the first component 20 and electrically connected to the main control board. The first component 20 is provided with an output shaft 42 driven by the motor 41 to rotate. The axial direction of the output shaft 42 is parallel to the first direction. The output shaft 42 passes through the second component 30 and one end of it is connected to the moving cutter head component 52 to drive the moving cutter head component 52 to rotate relative to the fixed cutter head component 51, thereby realizing grinding.

[0041] It is understood that the motor 41 can be set on the axial direction of the output shaft 42 or offset from the axial direction of the output shaft 42, and is not limited thereto; at the same time, the motor 41 can directly drive the output shaft 42 to rotate, or it can indirectly drive the output shaft 42 to rotate through a transmission mechanism such as a synchronous belt mechanism or a gear mechanism.

[0042] refer to Figures 1 to 5The second component 30 is movably mounted on the first component 20. Specifically, a drive device can be mounted on the first component 20 to drive the second component 30 to reciprocate linearly along the first direction. Alternatively, the second component 30 can be manually operated by the user to achieve reciprocating movement in the first direction. A fixed blade assembly 51 is mounted on the second component 30 near the grinding chamber a. When the second component 30 moves relative to the first component 20 along the first direction, the grinding gap between the fixed blade assembly 51 and the moving blade assembly 52 changes accordingly. Different grinding gaps correspond to different powder particle sizes.

[0043] It is understood that the aforementioned feed channel c is configured to pass through the second component 30 along the first direction and the output shaft 42 passes through the feed channel c.

[0044] Further reference Figures 3 to 5 The aforementioned ranging component 60 is disposed in the accommodating space b formed between the first component 20 and the second component 30. The ranging component 60 includes a Hall plate 61 connected to the first component 20 and a permanent magnet 62 connected to the second component 30. The permanent magnet 62 can reciprocate linearly along a first direction following the second component 30. The Hall plate 61 is electrically connected to the main control board. The Hall plate 61 and the permanent magnet 62 are arranged opposite each other in a direction perpendicular to the first direction. Furthermore, the bipolar poles of the permanent magnet 62 are arranged opposite each other in the first direction, that is, the line connecting the positive and negative poles of the permanent magnet 62 is parallel to the first direction, and the Hall plate 61 is disposed on one side of the line connecting the positive and negative poles of the permanent magnet 62.

[0045] Further reference Figures 3 to 5 In the accommodating space b, several ranging components 60 can be arranged in a circumferential array around the output shaft 42, such as two, three, etc., to improve the ranging accuracy.

[0046] Specifically, a linear Hall sensor is provided on the Hall plate 61, which can output voltage according to the Hall effect. After distance calibration, it realizes the correspondence between the change in magnetic field strength and the change in distance, thereby calculating the moving direction and distance of the second component 30 relative to the first component 20.

[0047] By configuring the ranging component 60 in this way, for the permanent magnet 62, the change in magnetic flux density on the side of the line connecting the positive and negative poles of the permanent magnet 62 is more linear than the change in magnetic flux density at the position opposite the positive pole or opposite the negative pole on its own axis. That is, on the side of the line connecting its positive and negative poles, the distance range in which the magnetic flux density changes linearly is larger.

[0048] The ranging component 60 is configured in such a way that, firstly, for the Hall plate 61, with the permanent magnet 62 and its own detection accuracy remaining unchanged, the change in magnetic flux detected by the Hall plate 61 can still remain within the linear range during the large travel distance of the second component 30. This allows the second component 30 to maintain a relatively accurate level of magnetic flux change detection during large travel distances; that is, while ensuring accurate distance measurement of the grinding gap, the grinding gap adjustment range of the coffee grinder is relatively large. Furthermore, compared to related technologies where the Hall plate 61 is positioned directly opposite the magnetic pole of the permanent magnet along the axis of the permanent magnet, thus placing extremely high demands on the assembly position of both the Hall plate 61 and the permanent magnet 62, in this embodiment, it is only necessary to ensure that the mounting plane of the Hall plate 61 is parallel to the axial direction of the permanent magnet 62. The requirements for assembly position error are lower than in the aforementioned cases, thereby simplifying the assembly process and improving assembly efficiency.

[0049] refer to Figures 1 to 5 In some embodiments, the second component 30 includes a rotating base 31 and a sliding base 32 that are threadedly connected to each other. The sliding base 32 is slidably disposed on the first component 20 along a first direction and its end face is fixedly connected to the fixed cutter head component 51 (it can be a direct connection or an indirect connection). The rotating base 31 is rotatably disposed on the first component 20 to drive the sliding base 32 to slide relative to the first component 20. A receiving space b is formed between the sliding base 32 and the first component 20. The permanent magnet 62 is disposed on the sliding base 32.

[0050] Specifically, refer to Figures 1 to 5 In some embodiments, the rotary seat 31 is rotated manually. Specifically, the rotary seat 31 may include a threaded sleeve that is threadedly connected to the slide 32, and a rotating cover 34 that is fixedly connected to the threaded sleeve and covers one end of the first component 20. When it is necessary to move the slide 32, rotating the rotating cover 34 to move the threaded sleeve will move the slide 32 in the first direction.

[0051] In other embodiments, the rotary seat 31 rotates electrically. Specifically, the rotary seat 31 may include a threaded sleeve that is threadedly connected to the slide 32, and an internal gear ring is fixedly sleeved on the threaded sleeve. Meanwhile, a first driving device for driving the threaded sleeve to rotate is provided on the first component 20. The first driving device is electrically connected to the main control board. The first driving device includes a second motor disposed on the first component 20 and a drive gear connected to the output shaft 42 of the second motor. The drive gear meshes with the internal gear ring.

[0052] refer to Figures 1 to 5In some embodiments, the parallelism of the fixed blade assembly 51 relative to the movable blade assembly 52 on the second assembly 30 is adjustable to compensate for tolerances generated during manufacturing and assembly. Specifically, the grinder also includes multiple leveling components 70, with at least three leveling components 70 arranged in a circumferential array around the output shaft 42. The leveling components 70 are used to drive the second assembly 30 to deflect relative to the output shaft 42 to adjust the flatness between the fixed blade assembly 51 and the movable blade assembly 52.

[0053] refer to Figures 1 to 5 It should be understood that when the leveling component 70 is provided, the second component 30 is configured to be able to deflect at a small angle relative to the first direction, so that the second component 30 can drive the fixed cutter head component 51 to adjust its parallelism relative to the moving cutter head component 52.

[0054] The leveling process of the leveling component 70 is achieved by the following structure.

[0055] First, a third component 80 capable of extending and retracting in a first direction is provided at one end of the rotary table 31 away from the fixed tool head assembly 51.

[0056] Secondly, the leveling assembly 70 includes a leveling screw 71 and a leveling sleeve 72. Specifically, the leveling sleeve 72 passes through the slide block 32 and is fixedly connected to the first assembly 20 at one end. The leveling sleeve 72 is configured to slide only relative to the slide block 32 in a first direction. That is, the slide block 32 and the leveling sleeve 72 can slide relative to each other in the axial direction. For example, a sliding sleeve 33 is provided between the slide block 32 and each leveling sleeve 72. The sliding sleeve 33 is tightly fitted with the slide block 32. The sliding sleeve 33 allows the slide block 32 and the leveling sleeve 72 to slide only relative to each other in the axial direction (i.e., parallel to the first direction), but they are fixed relative to each other in the circumferential direction. The leveling screw 71 rotates and passes through the third assembly 80 to be threadedly connected to the leveling sleeve 72. At the same time, the leveling screw 71 abuts against the third assembly 80 so that the third assembly 80 can maintain a compressed preload state, thereby maintaining the pressure applied to the rotating seat 31 towards the slide block 32.

[0057] Specifically, the leveling process of the fixed cutter head assembly 51 is as follows, taking the operation of a certain leveling component 70 as an example. Since the leveling screw sleeve 72 is fixedly connected to the first component 20 and can only slide relative to the slide block 32 in the first direction but cannot rotate relative to it, when the leveling screw 71 is rotated, since one end of the leveling screw sleeve 72 is fixedly connected to the first component 20, the leveling screw 71 slides in the first direction under the drive of the thread, thereby causing one end of it to further press the third component 80, causing the third component 80 to further press the rotating block 31. Since the rotating block 31 and the slide block 32 are threadedly connected, the two can only rotate relative to each other but cannot slide relative to each other. When the slide block 32 is subjected to the compressive force, it is pushed to move towards the side closer to the fixed cutter head assembly 51, thereby causing the entire second component 30 to deflect, and finally realizing the deflection adjustment of the fixed cutter head assembly 51, that is, changing the flatness between the fixed cutter head assembly 51 and the moving cutter head assembly 52, that is, realizing the leveling operation between the two.

[0058] Further reference Figures 2 to 5 In some embodiments, the first component 20 includes a bearing housing 21 located between the motor 41 and the second component 30 and disposed around the output shaft 42. Specifically, the bearing housing 21 is disposed on the side of the slide 32 near the first component 20 and located inside the annular space of the rotary seat 31, and a bearing is rotatably disposed between the bearing housing 21 and the output shaft 42; each leveling screw 71 passes through the bearing housing 21, and the two ends of the leveling screw sleeve 72 abut against the first component 20 and the bearing housing 21, respectively. It should be understood that there is a gap between the end faces of the bearing housing 21 and the leveling screw sleeve 72, which provides space for the leveling screw sleeve 72 to move axially.

[0059] refer to Figures 2 to 5 Based on the bearing seat 21, the aforementioned accommodating space b is formed between the slide 32 and the bearing seat 21; the Hall plate 61 is connected to the peripheral sidewall of the bearing seat 21, and the permanent magnet 62 is connected to the slide 32. Specifically, a mounting position for accommodating the permanent magnet 62 is formed on the slide 32, and a connecting bracket for the Hall plate 61 is provided on the bearing seat 21. When the permanent magnet 62 is assembled in the mounting position, since the fixed cutter head assembly 51 is fixedly connected to the end face of the slide 32, and the moving cutter head assembly 52 is connected to the output shaft 42 and fixedly set relative to the output shaft 42, when the grinding planes of the fixed cutter head assembly 51 and the moving cutter head are adjusted to be parallel to each other, the line connecting the positive and negative poles on the permanent magnet 62 is also parallel to the first direction.

[0060] Further reference Figures 2 to 5In some embodiments, a first spring 73 is fitted on the outer wall of the leveling screw sleeve 72 on the side near the fixed blade assembly 51 and located between the slide 32 and the first assembly 20. By providing the first spring 73, when the slide 32 is driven by the rotary seat 31 to slide along the first direction to adjust the grinding gap, the first spring 73 can mitigate the sliding of the slide 32, thereby improving the smoothness of the sliding of the slide 32.

[0061] In a further embodiment, the third component 80 includes a second spring 81, a connecting seat 82, a thrust bearing 83, and an abutment seat 84 arranged sequentially in a first direction. The second spring 81 abuts against the bearing seat 21 and the connecting seat 82 at both ends, and the second spring 81 is always pre-tensioned to ensure that the connecting seat 82 and the bearing seat 21 maintain a tendency to move away from each other. One end of the connecting seat 82 is always in contact with the abutment seat 84, and a leveling screw 71 passes through both the abutment seat 84 and the connecting seat 82. The two end faces of the thrust bearing 83 are respectively between the rotating seat 31 and the abutment seat 84.

[0062] Thus, under the pre-tightened state of the second spring 81, the connecting seat 82 always remains in a tight abutment state with the abutment seat 84 under the elastic force of the second spring 81. Since the leveling screw 71 is threadedly connected to the leveling sleeve 72, the abutment seat 84 also maintains a tight end face abutment state with the leveling screw 71. When the leveling screw 71 is rotated, if the depth of the leveling screw 71 in the leveling sleeve 72 is further increased, the end face of the leveling screw 71 further abuts the abutment seat 84. The abutment seat 84 transmits the abutment force to the thrust bearing 83, thereby causing the thrust bearing 83 to push the rotating seat 31 and drive the sliding seat 32 to move towards the side closer to the fixed cutter head assembly 51. At the same time, the second spring 81 is also further compressed.

[0063] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A bean grinder comprising a control system, characterized in that Also includes: The machine body includes a grinding chamber, a first component, and a second component movably disposed on the first component and at least partially movable along a first direction; a receiving space is formed between the first component and the second component. A motor is mounted on the first component and electrically connected to the control system. A fixed blade assembly is disposed in the grinding chamber and connected to the second assembly; The moving blade assembly is disposed in the grinding chamber and fixedly connected to the output shaft of the motor; A ranging component, disposed in the receiving space and electrically connected to the control system, includes a Hall plate disposed opposite to the first component in a direction perpendicular to the first direction and a permanent magnet disposed on the second component. The bipolar poles of the permanent magnet are disposed opposite to each other in the first direction. The receiving space allows the permanent magnet to move along the first direction. The axis of the output shaft is parallel to the first direction.

2. The bean grinder according to claim 1, characterized in that: The second component includes a rotating base and a sliding base that are threaded together. The sliding base is slidably disposed on the first component along a first direction and its end face is fixedly connected to the fixed cutter head assembly. The rotating base is rotatably disposed on the first component to drive the sliding base to slide relative to the first component. The receiving space is formed between the sliding base and the first component.

3. A bean grinder as claimed in claim 2, characterized in that: A first driving device for driving the rotary table to rotate is provided on the first component. The first driving device is electrically connected to the control system. The first driving device includes a second motor provided on the first component, a driving gear connected to the output shaft of the second motor, and an internal gear ring sleeved on the rotary table. The driving gear meshes with the internal gear ring.

4. A bean grinder as claimed in any one of claims 2 to 3, characterized in that: The system also includes a leveling assembly for driving the second component to deflect relative to the output shaft, and at least three leveling assemblies are arranged around the output shaft array.

5. The bean grinder according to claim 4, characterized in that: A third component capable of telescopic movement in a first direction is provided at the end of the rotary table away from the fixed cutter head assembly; the leveling component includes a leveling screw and a leveling sleeve, the leveling sleeve passes through the slide and one end is fixedly connected to the first component, the slide and the leveling sleeve are slidably disposed relative to each other in the axial direction, the leveling screw rotates and passes through the third component and is threadedly connected to the leveling sleeve, and one end of the leveling screw abuts against the third component.

6. A bean grinder as claimed in claim 5, characterized in that: The first component includes a bearing housing located between the motor and the second component and arranged around the output shaft, with a bearing rotatably disposed between the bearing housing and the output shaft; each of the leveling screws passes through the bearing housing, and the two ends of the leveling screw sleeve abut against the first component and the bearing housing, respectively.

7. A bean grinder as claimed in claim 6, characterized in that: The accommodating space is formed between the slide and the bearing housing; the Hall plate is connected to the peripheral sidewall of the bearing housing, and the permanent magnet is connected to the slide.

8. A bean grinder as claimed in any one of claims 5 to 7, characterized in that: A first spring is fitted on the outer wall of the leveling screw sleeve, which is located on the side of the fixed cutter head assembly and between the slide and the first assembly.

9. A bean grinder as claimed in claim 6 or 7, characterized in that: The third component includes a second spring, a connecting seat, a thrust bearing, and an abutment seat arranged sequentially in a first direction; the two ends of the second spring abut against the bearing seat and the connecting seat respectively; the leveling screw passes through the abutment seat and the connecting seat; the two end faces of the thrust bearing are respectively between the rotating seat and the abutment seat.

10. A bean grinder as claimed in any one of claims 1 to 3, characterized in that: The machine body is provided with a feeding channel and a discharging channel, both of which are connected to the grinding chamber. A feeding port is provided on the feeding channel. The feeding channel is arranged to pass through the second component along a first direction, and the output shaft passes through the feeding channel.

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